/*
* always called with mainlock locked
*/
void
syncall(void)
{
for(;;)
if(!syncblock())
return;
}
/*
* process to synch blocks
* it puts out a block/line every second
* it waits 10 seconds if catches up.
* in both cases, it takes about 10 seconds
* to get up-to-date.
*
* it also updates the filter stats
* and executes commands
*/
void
syncproc(void)
{
char buf[4*1024];
Filter *ft;
uint32_t c0, c1;
int32_t t, n, d;
int i, p[2];
/*
* make a pipe for commands
*/
if(pipe(p) < 0)
panic("command pipe");
sprint(buf, "#s/%s.cmd", service);
srvfd(buf, cmdmode, p[0]);
close(p[0]);
cmdfd = p[1];
notify(catchalarm);
t = time(nil);
for(;;){
i = syncblock();
alarmed = 0;
alarm(i ? 1000: 10000);
n = read(cmdfd, buf, sizeof buf - 1);
if(n <= 0 && !alarmed)
sleep(i ? 1000: 10000);
alarm(0);
if(n > 0){
buf[n] = '\0';
if(cmd_exec(buf))
fprint(cmdfd, "done");
else
fprint(cmdfd, "unknown command");
}
n = time(nil);
d = n - t;
if(d < 0 || d > 5*60)
d = 0;
while(d >= 1) {
d -= 1;
for(i=0; i<f.nfilter; i++) {
ft = f.filters[i];
c0 = ft->count;
c1 = c0 - ft->oldcount;
ft->oldcount = c0;
ft->filter[0] = famd(ft->filter[0], c1, 59, 60);
ft->filter[1] = famd(ft->filter[1], c1, 599, 600);
ft->filter[2] = famd(ft->filter[2], c1, 5999, 6000);
}
}
t = n;
}
}
void
sync(char *reason)
{
int32_t i;
print("sync: %s\n", reason);
for(i=10*nhiob; i>0; i--)
if(!syncblock())
return;
print("sync shorted\n");
}
void
sync(char *reason)
{
long i;
if(chatty)
fprint(2, "sync: %s\n", reason);
for(i=10*nhiob; i>0; i--)
if(!syncblock())
return;
}
/*
* process to synch blocks
* it puts out a block/cache-line every second
* it waits 10 seconds if caught up.
* in both cases, it takes about 10 seconds
* to get up-to-date.
*/
void
synccopy(void)
{
int f;
for (;;) {
rlock(&mainlock);
f = syncblock();
runlock(&mainlock);
if(!f)
delay(10000);
else
delay(1000);
}
}
